OpenTechnical

OT-2026-000050385

Publication integrity record

Single cup vacuum gripper, common isolation valve, pump fed, vented before set-down

This page is the evidence record. It changes as evidence arrives: a trusted timestamp, an independent retrieval, a custody deposit. The disclosure itself (/p/OT-2026-000050385) never changes.

Identity and time

Publication numberOT-2026-000050385 · never reused
Internal UUID01a0ae82-5c47-79cf-a382-da12ed95f467 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:36:14.042293Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000050385
StatusPUBLIC

Content hashes

Canonical text91dbda6bba9fdbd8e7a12cee3131058dcaf32bb33af40da9ed2a1021bd09fc8c
Markdown2477596177ebc11daef82383f395a6a70534af3e1824fd35b1302ff557c7b3fc
PDF
Publication page131a45b103ebf4105d05cded6366fe296db84229c6417b3c3b359797f071e72e
Manifest430297cf2c2f8e117a58170d5eca2fa1a412bd4aa2b90d06903d2141f1e5a358

SHA-256, lowercase hex, over the exact bytes of each published file. Every figure is hashed individually in the manifest.

Manifest signature

AlgorithmEd25519 · key OT-SIGN-2026-01 · Verified
SignatureGekkzmYcQ2FA1PWMtWL4LL503baAUewdO8irH2mYU+YjW+90dNLFVdq9xDtfbQVgrd+rieJQl6wCfTDSrrMyBg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:01:25.324298ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050385
observed 131a45b103ebf4105d05cded6366fe29...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:25.306886ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050385/manifest.json
observed 430297cf2c2f8e117a58170d5eca2fa1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:25.291540ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050385/publication.md
observed 2477596177ebc11daef82383f395a6a7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:25.272803ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050385/publication.txt
observed 91dbda6bba9fdbd8e7a12cee3131058d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139

Requested from infrastructure separate from the publication system, over the public internet, with no credential. A MATCH means an ordinary internet client could fetch the publication and received exactly the bytes recorded above.

Independent archive

External archivePending Canonical URLs are submitted to an independent archive in batches.

A capture held by an outside archive is evidence that does not depend on OpenTechnical continuing to exist. It supplements the records above; it does not replace them.

Third-party custody

Custody packagePending Custody packages are produced weekly.